Helsinki, Finland Weather
Helsinki hourly forecast: next 24 hours
Today's high of 72°F (22°C) is about 4°F (2°C) above the typical August high of 68°F (20°C).
Current conditions in detail
Helsinki weather tomorrow (Friday, August 7)
Tomorrow in Helsinki looks patchy rain nearby, with a high of 68° and an overnight low of 58°. There is a 57% chance of rain - plan accordingly. Winds top out near 17 mph, and the UV index reaches 4 (moderate).
Helsinki 14-day forecast
About the weather in Helsinki
Weather in Helsinki is shaped by its humid continental climate - expect warm summers and cold, often snowy winters. July afternoons typically reach 69°F (20°C), while January highs hover near 30°F (-1°C). Annual precipitation averages 30.7 inches (781 mm) over about 144 rainy days.
Helsinki weather: quick facts
- Hottest month: July - highs near 69°F (20°C)
- Coldest month: January - highs near 30°F (-1°C)
- Record high: 88°F (31°C) · Record low: -14°F (-26°C) (2015–2024)
- Wettest month: August (13 rainy days) · Sunniest: June (14.7 h sun/day)
- Climate type: humid continental - warm summers and cold, often snowy winters
- Snow: about 34 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 69°F (20°C) and overnight lows stay near 57°F (14°C). The coolest month is January, with typical highs of 30°F (-1°C) and lows around 22°F (-6°C). Based on 2015–2024 weather data, temperatures have reached as high as 88°F (31°C) and dropped as low as -14°F (-26°C).
Rain, sun and snow
August is usually the wettest month. It brings about 3.3 inches (83 mm) of rain over 13 days, while April is the driest. June brings the most sunshine, averaging 14.7 hours of sun a day. Snow falls on about 34 days in a typical year, mostly from November through April.
Season by season
Spring (March through May)
Spring in Helsinki is brisk and cold, with daytime highs averaging 46°F (8°C) and nights around 34°F (1°C); expect showers on roughly 30 days across the season, plus around 7 snowy days.
Summer (June through August)
Summer in Helsinki is crisp but comfortable, with daytime highs averaging 68°F (20°C) and nights around 56°F (13°C); expect showers on roughly 36 days across the season.
Fall (September through November)
Fall in Helsinki runs cold, with daytime highs averaging 49°F (10°C) and nights around 42°F (5°C); expect showers on roughly 38 days across the season, plus around 4 snowy days.
Winter (December through February)
Winter in Helsinki is bitterly cold, with daytime highs averaging 32°F (0°C) and nights around 24°F (-4°C); expect showers on roughly 40 days across the season, plus around 23 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Average temperatures in Helsinki by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 30° | 22° | 14 | 2.7 in | 1.4 h/day | 86% |
| February | 31° | 23° | 12 | 2.5 in | 3.6 h/day | 86% |
| March | 35° | 26° | 11 | 1.8 in | 6.6 h/day | 83% |
| April | 45° | 33° | 10 | 1.8 in | 9.9 h/day | 76% |
| May | 57° | 43° | 9 | 1.9 in | 13.0 h/day | 70% |
| June | 66° | 53° | 10 | 2.2 in | 14.7 h/day | 70% |
| July | 69° | 57° | 13 | 3.1 in | 13.3 h/day | 76% |
| August | 68° | 57° | 13 | 3.3 in | 11.2 h/day | 79% |
| September | 60° | 51° | 11 | 2.7 in | 8.2 h/day | 81% |
| October | 48° | 40° | 13 | 3.1 in | 4.8 h/day | 84% |
| November | 40° | 34° | 14 | 3.1 in | 2.0 h/day | 87% |
| December | 34° | 28° | 14 | 2.6 in | 1.3 h/day | 87% |